This issue is less about Intel's fab failures and more about their inability to decouple their architecture update cadence from their fab progress. They stopped

This issue is less about Intel's fab failures and more about their inability to decouple their architecture update cadence from their fab progress. They stopped iterating on their CPU designs while waiting for 10nm to get fixed. That left them with an oversized P core and an outdated E core, and all they could do for Alder Lake was slap them onto one die and ship it, with no ability to produce a well-matched pair of core designs in any reasonable time frame. We're still seeing weird consequences of their inability to port CPU designs between processes and fabs: this year's laptop processors have HyperThreading only in the lowest-cost parts—those that still have the CPU chiplet fabbed at Intel while the higher core count parts are made by TSMC.